Innocom Technology(shenzhen) Co., Ltd.

Chimei Innolux Corporation

Innolux Display Corporation

Yu-Liang Huang

Zhi-Feng Fu

Ke Lin

Xiao-Jing Qi

Wu-Hong Fang

A backlight driving circuit includes a light driving unit, which includes a constant current unit, and a light source operated by the constant current unit. The light driving unit further includes a feedback control unit and a detection circuit. The detection circuit detects the light source and outputs at least a voltage feedback signal to the feedback control unit. The feedback control unit obtains a prestored power parameter corresponding to the voltage feedback signal and outputs an adjusting signal to the constant current unit to adjust the constant current of the light source.

Backlight driving circuit

An exemplary backlight module () includes a light guide plate (), a light source (), a light source driver (), and a frame (). The light source is provided adjacent to the light guide plate. The light source driver is directly connected with the light source. The frame includes an upper frame () and a lower frame (). The upper frame and the lower frame cooperatively form a space to accommodate the light guide plate, the light source, and the light source driver.

Backlight module having frame accommodating light source driver and liquid crystal display using same

A diffusion plate () includes at least two diffusion units (), each diffusion unit including at least one connecting portion (). The connecting portions () of each two adjacent diffusion units mate with each other, thereby connecting all the diffusion units together. The number of diffusion units may be increased or decreased according to the size of a liquid crystal display to be produced. This eliminates the need to alter the production means for differently sized backlight modules, thereby reducing costs and increasing production efficiency. In another embodiment, a diffusion plate () includes at least two diffusion units (). Each diffusion unit includes at least one connection protrusion (). At least one interconnecting member () is disposed between each two adjacent diffusion units. The interconnecting member and the connecting protrusions mate with each other, thereby connecting all the diffusion units together. A related backlight module () is also provided.

Diffusion plate and backlight module using the same

An exemplary backlight module () includes a light guide plate () and a light source (). The light guide plate includes a body () and a protrusion () extending from the body. The body includes a light emitting surface () and a side surface () adjacent the light emitting surface. The light source includes a wire () which is disposed in a space defined between the side surface and the protrusion. The backlight module is compact with a reduced length.

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Miao-Li, Taiwan

Yu-Liang Huang